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论文解析

chinese-open-relation-extraction-and-knowledge-base-establishment's Introduction

中文关系抽取以及知识图谱的构建论文解析

中文特殊的语言现象

英文单词之间依照空格进行分割，中文没有明显的分割符号

英文按照时态区别时间关系，中文则需要根据上下文进行判断

Tomas 在肯德基吃早饭

Tomas eat breakfast at KFC

Tomas will eat breakfast at KFC

英文通过介词连接同一句话中的多个谓语，中文则不需要
```
乔丹是美国职业篮球运动员，出身在纽约。

Jordan is an American Professional basketball player who was born in NewYork.
```
因此在英文中表现优异的关系抽取模型往往在中文中表现一般

三种处理方法

伪实体的处理
```
奥巴马总统访问**。
The President Obama visited China
```
英文中通常喜欢把主语放在句首或者借助介词president Obama、the Police of Washington，在中文中，我们要先把伪实体关系“总统访问**”提取出来，之后提取 “奥巴马访问**”

CLVC现象

 CLVC是指轻动词通常跟着名词，动词跟着介词，而介词的位置通常不确定，这种情况经常出现，如：
 
 中文：巴拿马与**在2017年建立外交关系
 
 英文：Panama established diplomatic relations with China. 
 
 实际处理过程中，英文采取Verb-noun-preposition的形式，
 而这种在中文数据中行不通，中文往往有更加灵活的位置（eg.提前介词)“与巴拿马建立外交关系”

采用语义依存句分析-哈工大通过分析语句中各个部分之间的联系，从而提取关系，借助哈工大的依存关系定义，如下：

依存语法

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最近在做基于句法的RE，交流一下吗~

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